Seriously? If I take a shit, it's more than 5 minutes itself. Waiting in line to buy coffee or a donut, let alone eat (I guess if you are in a real hurry eat in your car, but don't you want a break???). Just doing a lap of the parking lot to stretch my legs. Even if that's just 25 minutes, that's still quite a bit of charge. That said I'll still choose a bus or train over a car trip any day I can, but yeah..